Home / 18,969.96-26,181.74-11,018.84

Finding the Fourth Proportional to 18,969.96, 26,181.74 and 11,018.84

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Solution

The fourth proportional to 18,969.96, 26,181.74 and 11,018.84 is: 15,207.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969.96 : 26,181.74 = 11,018.84 : x
  2. Step 2: Convert to fraction form
    18,969.96/26,181.74 = 11,018.84/x
  3. Step 3: Cross multiply
    18,969.96x = 26,181.74 × 11,018.84
  4. Step 4: Simplify right side
    18,969.96x = 288,492,403.98
  5. Step 5: Solve for x
    x = 288,492,403.98/18,969.96
  6. Step 6: Final answer
    x = 15,207.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.